$ sudo dpkg --force-all --purge libgnomeui-common
(Reading database ... 78065 files and directories currently installed.)
Removing libgnomeui-common ...
/var/lib/dpkg/info/libgnomeui-common.prerm: 6: gconf-schemas: not found
dpkg: error processing libgnomeui-common (--purge):
 subprocess pre-removal script returned error exit status 127
Errors were encountered while processing:
 libgnomeui-common